The submarine in war and peace; its developments and its possibilities (1918)
Lake, Simon, 1866-1945 · Philadelphia, London, J.B. Lippincott company · leaf 52
down the tube, say, for purposes of descrip-tion, at C. If a piece of ground glass were held at the focusof the objective lens at C, the image could be seen. The lensD, located farther down the tube, in turn now views the 22 Valve to pre-1vent water en-tering vessel if Ithe periscopeis shot away.… … THE PERISCOPE IS THE EYE OF THE SUBMARINE. (See description.)23 THE SUBMARINE IN WAR AND PEACE image and transmits it still farther down the tube, whereit is turned through the right-angle prism, E, and wherethe image is again turned into an erect position. A pieceof ground glass located at F would…
Submarines (Ships)
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